Context is important. Context is generally about time and place. If you want to contextualise time then you need to communicate meanings such as:

time around now

time up to and including now

past and finished time

past unfinished time

future time related to the present

etc.

Time context is achieved using carefully chosen verb tenses and time expressions. In the sentence above, “in the last 10 years” is a time expression that carries the meaning time up to and including now. In this case the correct tense is present perfect:

In the last 10 yearstherehas been an increase in aquaculture.

Create time context using verb tenses and time expressions. Make sure your verb tenses and time expressions match!